Giant magnetic effects and oscillations in antiferromagnetic Josephson weak links
Abstract
Josephson junctions with an antiferromagnetic metal as a link are described. An especially interesting case is provided by a barrier built on a giant magnetoresistance multilayer or by using doped manganites in the metallic A-phase. Such a junction is predicted to display unusual properties. The junction can be switched off by a relatively small magnetic field. In addition, the amplitude of the Josephson current rapidly oscillates as a function of the field.
- Publication:
-
Applied Physics Letters
- Pub Date:
- June 2001
- DOI:
- 10.1063/1.1377310
- Bibcode:
- 2001ApPhL..78.3657G
- Keywords:
-
- 74.50.+r;
- 85.25.Cp;
- 72.15.Gd;
- 75.70.Pa;
- 75.70.Cn;
- 74.25.Ha;
- Tunneling phenomena;
- point contacts weak links Josephson effects;
- Josephson devices;
- Galvanomagnetic and other magnetotransport effects;
- Magnetic properties of interfaces;
- Magnetic properties